Did the rear main wow big difference in seals better lip surface area in the Viton type seal engine is all assembled and back in and has been fired up without any indications of any oil leaking . Cooling system was bled sump stripped of its colour and went with a satin black finish. I went with the Morosso sump Gaskets as they are crush proof and some non Harding aviation cement for added insurance. Just got my new tie rod ends as I found one bad , sand blasted the drag link and repainted will fit the drag link back in tomorrow.